<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>09日期设定</title>
	<script>
		var now = new Date();//

		var date = now.getDate();//22

		// now.setDate(date+7);

		now.setMonth(13)

		console.log(now);


	</script>
</head>
<body>
	
</body>
</html>